Geotrichum spp. are a type of environmental fungus that can be found in the gut microbiome, which has potential to cause illness most often in immunosuppressed people and patients with traumatic injuries such as burns. It has been linked to some gastrointestinal conditions such as diarrhea, enteritis, Crohn's disease, irritable bowel syndrome as well as overall health status and nutrient absorption. Measuring levels of Geotrichum in stool samples allows clinicians to assess an individual’s intestinal environment and make dietary recommendations accordingly.